HarmonyOS 鸿蒙Next Tabs页签默认居中如何改为居左并保持TabsContent 100%宽度 HarmonyOS 鸿蒙Next 我有三个Tabs标签分别为课程、直播、我的课程想让它们居左展示但保持TabsContent展示100%宽度

[@Entry](/user/Entry)
@Component
struct TabDemo5 {
@State tabArray: Array<number> = [0, 1, 2 ]
@State focusIndex: number = 0
@State pre: number = 0
@State index: number = 0
private controller: TabsController = new TabsController()
@State test: boolean = false
// 单独的页签
@Builder
Tab(tabName: string, tabItem: number, tabIndex: number) {
Column({ space: 20 }) {
Text(tabName)
.fontSize(22)
.fontColor(tabIndex === this.focusIndex ? "#0000FF " : “#000000”)
.margin({top: ‘17%’})
}
.width(85)
.height(60)
.onClick(() => {
this.controller.changeIndex(tabIndex)
this.focusIndex = tabIndex
})
}
build() {
Column() {
Column() {
// 页签
Row({ space: 7 }) {
Scroll() {
Row() {
ForEach(this.tabArray, (item: number, index: number) => {
this.Tab(“页签” + item, item, index)
})
}
}
.align(Alignment.Start)
.scrollable(ScrollDirection.Horizontal)
.scrollBar(BarState.Off)
.width(‘100%’)
.height(‘10%’)
.backgroundColor(Color.Pink)
}
.width(‘100%’)
.backgroundColor(Color.Pink)
//tabs
Tabs({ barPosition: BarPosition.Start, controller: this.controller }) {
ForEach(this.tabArray, (item: number, index: number) => {
TabContent() {
Text('我是页面 ’ + item + " 的内容")
.height(300)
.width(‘100%’)
.fontSize(30)
}
.backgroundColor(Color.Gray)
})
}
.barHeight(0)
.animationDuration(100)
.onChange((index: number) => {
console.log(‘foo change’)
this.focusIndex = index
})
}
.alignItems(HorizontalAlign.Start)
.width(‘100%’)
}
.height(‘100%’)
}
}
 

.barMode(BarMode.Scrollable)

设置标签模式